Changes

==Details==

==Details==

[[Quantum chromodynamics]], a part of the [[standard model]] of particle physics, is a typical [[non-Abelian]] [[gauge theory]] based on a local (gauge) [[symmetry group]] called [[SU(3)]]. All the particles in this theory interact with each other, through the strong force. The strength of the interaction is parametrized by the strong [[coupling constant]]. This strength is, as usual, modified by the gauge [[coupling constant#Charge, colour charge, etc|colour charge]] of the particle. This really refers to a [[Group-theoretic|group theoretical]] property whose meaning is explained in the article on [[colour charge]]. Quarks and gluons are the only fundamental particles which carry non-vanishing colour charge, and hence participate in the strong interactions.

[[Quantum chromodynamics]], a part of the [[standard model]] of particle physics, is a typical [[non-Abelian]] [[gauge theory]] based on a local (gauge) [[symmetry group]] called [[SU(3)]]. All the particles in this theory interact with each other, through the strong force. The strength of the interaction is parametrized by the strong [[coupling constant]]. This strength is, as usual, modified by the gauge [[coupling constant#Charge, color charge, etc|colour charge]] of the particle. This really refers to a [[Group-theoretic|group theoretical]] property whose meaning is explained in the article on [[color charge]]. Quarks and gluons are the only fundamental particles which carry non-vanishing colour charge, and hence participate in the strong interactions.

==See also==

==See also==